EP2013435A2 - A window assembly - Google Patents

A window assembly

Info

Publication number
EP2013435A2
EP2013435A2 EP07732184A EP07732184A EP2013435A2 EP 2013435 A2 EP2013435 A2 EP 2013435A2 EP 07732184 A EP07732184 A EP 07732184A EP 07732184 A EP07732184 A EP 07732184A EP 2013435 A2 EP2013435 A2 EP 2013435A2
Authority
EP
European Patent Office
Prior art keywords
window assembly
assembly according
frame
ventilating part
clip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07732184A
Other languages
German (de)
French (fr)
Other versions
EP2013435B1 (en
Inventor
Ian Kernaghan
Kevin Gorman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Britplas Commercial Windows Ltd
Eurocell Profiles Ltd
Original Assignee
Britplas Commercial Windows Ltd
Eurocell Profiles Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Britplas Commercial Windows Ltd, Eurocell Profiles Ltd filed Critical Britplas Commercial Windows Ltd
Publication of EP2013435A2 publication Critical patent/EP2013435A2/en
Application granted granted Critical
Publication of EP2013435B1 publication Critical patent/EP2013435B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/42—Sliding wings; Details of frames with respect to guiding
    • E06B3/46—Horizontally-sliding wings
    • E06B3/4609—Horizontally-sliding wings for windows
    • E06B3/4618—Horizontally-sliding wings for windows the sliding wing being arranged beside a fixed wing
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E06B7/08—Louvre doors, windows or grilles
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/04—Shutters, movable grilles, or other safety closing devices, e.g. against burglary of wing type, e.g. revolving or sliding
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/12—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of sliding members
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
    • E06B2009/527—Mounting of screens to window or door
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/003—Storm doors; Combination-screen-and-storm-doors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44017—Clasp, clip, support-clamp, or required component thereof with specific mounting means for attaching to rigid or semirigid supporting structure or structure-to-be-secured

Definitions

  • the present invention relates to a window assembly.
  • windows for residential and commercial buildings include opening sections to allow air from an exterior of the building to enter the building, for ventilation purposes, for example.
  • the opening sections often comprise a window pane which slides, in generally horizontal or vertical directions, in relation to a fixed pane.
  • the panes are typically mounted in a window frame with the sliding pane being spaced from, but generally parallel to, the fixed pane, such that when the sliding pane has been moved to its open position, it is located behind the fixed pane, i.e. towards the interior of the building.
  • windows of this nature allow a large amount of external air to enter a building, they also give rise to a number of disadvantages, principally relating to safety and security.
  • UK patent application no. 2378475 discloses a removable window guard comprising a frame which supports wire mesh and which can be clipped into place on an interior side of the window by means of clips which are attached to the frame.
  • European patent application no. 0422934 discloses a window guard comprising a sheet of perforated metal attached to a frame which is receivable on an external side of a window frame and which can be fixed into position using brackets.
  • a window assembly comprising a frame in which are received sliding and security members, the security member having ventilating and non-ventilating parts, with the sliding member being slidably moveable over the security member between a first position in which air may pass through the ventilating part so as to ventilate the room in which the window assembly is located, and a second position in which no such ventilation can occur.
  • the ventilating part of the security member may comprise a perforated or apertured sheet, panel, board or the like.
  • the ventilating part comprises a sheet, panel or layer of mesh, grille, lattice or the like.
  • the ventilating part may be any thickness dependent upon the proposed usage. Most preferably, the ventilating part is at least 1.5 mm thick. Most preferably, the ventilating part comprises a sheet of metal mesh. The non-ventilating part of the security member may comprise a fixed pane.
  • the security member may have sealing parts to assist in holding the ventilating part in place.
  • the ventilating part may be received within a sub- frame of the security member, with the fixed pane being received within an adjacent sub-frame.
  • the sealing parts may be provided within the sub-frame of the ventilating part, and may define a gap in said sub-frame within which the ventilating part is received.
  • the ventilating part may comprise a sheet, having a lip which is received in the gap in the sub-frame.
  • the ventilating part may be held in place by a fastening element which passes through it and into the sub-frame.
  • the fastening element may comprise a threaded fastener, and may conveniently comprise an anti-tamper screw.
  • the window assembly may comprise a concealing clip which, in use, at least partially conceals at least some of the fastening elements.
  • the concealing clip may be generally L-shaped in cross-section, and may have longer and shorter legs.
  • the legs may be angularly spaced by more than 90 degrees.
  • the concealing clip may have a bead at the distal end of the shorter leg.
  • the bead in use, may engage an inner surface of the lip.
  • the concealing clip in use, may cover some or all of the heads of the fastening elements.
  • the formation may project inwardly, and may be resilient, to allow the clip to pass over it during its installation in the sub-frame. Several such formations may be provided.
  • a remote control mechanism may be provided to operate the opening/closing of the ventilating part by contolling the movement of the sliding member over ventilating and non-ventilating parts of the security member.
  • the remote control mechanism may be provided at an inner or an outer location of the assembly for internal/ external opening/closing control respectively.
  • the remote control mechanism may be mechanical or electrical.
  • the remote control mechanism may be provided internally or externally of the sliding member.
  • a concealing clip for use when holding a panel in place within a window or door frame, the concealing clip being generally L-shaped and having longer and shorter legs, the legs being angularly spaced by more than 90 degrees, such that the clip, in use, may be positioned over a fastening element which holds the panel to the frame.
  • the concealing clip may comprise a bead at the distal end of the shorter leg.
  • the bead in use, may engage an interior part of a lip of the panel.
  • FIGURE 1 is a vertical cross-sectional view of a conventional uPVC style double-glazed fixed window pane assembly
  • FIGURE 2 is a schematic illustration of a security window assembly
  • FIGURE 3 is a horizontal cross-sectional view of the security window assembly of Figure 2; and FIGURE 4 is an enlarged cross-sectional view of the part of the assembly shown in dotted outline in Figure 2, with some parts shown spaced from their in-use positions, for clarity.
  • a conventional uPVC (unplasticised polyvinyl chloride) style double-glazed fixed window pane assembly is shown generally at 10, comprising sub-frame members 12 having internal reinforcing members 14 of aluminium, steel or any other suitable material.
  • the sub-frame members 12 have sealing parts 16 which engage with outer and inner glass panes 18, 20, with the panes 18, 20 being separated by spacers 22 of rubber or similar material, so as to maintain an air gap between them to provide thermal and sonic insulation.
  • FIG. 1 is a schematic view of a security window assembly 30 in a closed condition.
  • the security window assembly 30 comprises an outer fixed pane 32 and an inner sliding pane 34, each of generally similar construction to the sealed unit 24 referred to above.
  • the outer fixed pane 32 and the inner sliding pane 34 are mounted within a common frame 36, with the inner sliding pane 34 being mounted for sliding movement in the direction of arrow 38, for example on rails or runners (not shown), inwardly of the fixed pane.
  • the frame 36 may be a plastics (e.g. uPVC), timber or metallic (e.g. aluminium) construction.
  • the arrangement is such that the when the assembly 30 is installed, the inner sliding plane 34 lies in a generally vertical plane on an interior side of the assembly 30, with the outer fixed plane 32 lying in a generally parallel plane on an exterior side of the assembly 30.
  • the outer fixed pane 32 and the inner sliding pane 34 can be in reverse order where opening is intended to be operated from a location external to a room in which the assembly 30 is installed.
  • the inner sliding pane 34 is moveable between an open position, in which it is positioned behind the outer fixed pane 32, and the closed position shown in the Figure.
  • the rails or runners on which the sliding pane 34 is mounted provide an inertia bearing or other suitable feature, that prevents the sliding pane 34 from being slidably moved at speed. Therefore, where the sliding pane 34 is slidably moved across said runners above a certain speed, the bearings respond by locking the position of the sliding pane 34, the aim being to prevent the sliding pane 34 from being used to self-harm or create a disturbance.
  • the frame 36 may be of a generally welded or mechanically jointed construction, as may be the sub-frame members 42 and 48, referred to below.
  • An outer security pane 40 is mounted adjacent the outer fixed pane 32, with the security pane 40 and the fixed pane 32 thus forming a single security member on the exterior side of the assembly 30.
  • the outer security pane 40 comprises sub-frame members 42, within which a ventilating part 44, comprising a panel of wire mesh, perforated metal, lattice, grille or the like, is housed, to allow the passage of light and air but to present a physical barrier to prevent people or objects from passing through (or from being passed through, in the case of weapons or drugs, for example) the opening created when the inner sliding pane 34 is in its open condition.
  • the outer security pane 40 comprises approximately between 35% and 55% open area for ventilation.
  • the outer security pane 40 comprises 2 mm perforations or apertures in a 3 mm matrix arrangement (in every 3mm area, a 2mm hole is provided), giving a 40% open area for visibility therethrough. This arrangement prevents the passage of very small articles and behaves as an efficient insect screen, whilst providing adequate visibility and a high degree of strength.
  • 40 comprises approximately 51% open area for ventilation, which is achieved by 3 mm perforations or apertures in a 4 mm matrix arrangement for optimum visibility and optimum strength.
  • any suitable matrix arrangement can be provided to achieve the required degree of strength and visibility.
  • the outer security pane 40 is approximately 1.5 mm in most cases, although thicker and thinner panes 40 can be provided where strength is a greater issue/ lesser issue respectively.
  • the construction of the outer security pane 40 is shown in more detail in Figure 3, a horizontal cross-sectional view of the assembly 30 of Figure 2.
  • the outer security pane 40 has, at one side, a sub-frame member 42 with a reinforcing member 46, whilst at an opposite side the outer security pane 40 shares a sub-frame member 48 and reinforcing member 50 with the outer fixed pane 32.
  • the sub-frame members 42, 48 have sealing parts 52, which assist in holding the ventilating part 44 of mesh or the like in place.
  • the ventilating part 44 comprises a generally flat sheet whose edges are folded to create a lip 54 of substantially the same depth as a gap 56 between opposed sealing parts 52 of the frame member 42.
  • the ventilating part 44 slots into the sub-frame member 42, with the lip 54 being received in the gap 56, such that the ventilating part 44 abuts the outer sealing parts 52 of the sub-frame members 42, 48.
  • the ventilating part 44 is held in place by fastening elements which pass through it, to and into the sub-frame members 42 and 48.
  • the ventilating part 44 may be held in place using threaded fasteners 45 which pass through pre-drilled holes in the lip 54 into the inner surface 67 of the sub-frames. These pre-drilled holes can be provided at regular intervals of approximately 100 mm.
  • the threaded fasteners 45 may be "anti-tamper" screws, which resist unauthorised removal by virtue of a specially-configured head, for example. Where a lower degree of security is acceptable, the ventilating part 44 may simply be held in place by way of a conventional glazing bead applied to the outwardly-facing part of the assembly.
  • the ventilating part 44 may also be provided with a concealing clip, shown generally at 58 in Figures 3 and 4. One or more individual clips 58 may be provided, with the clips 58 being spaced at intervals along the length of the lip 54, over the threaded fasteners 45 which hold the ventilating part 44 in place. In a preferred embodiment, however, a single elongate clip 58 is used, extending along substantially the entire length of the lip 54, so as to ensure a close fit between the ventilating part 44 and the sub-frame members 42, 48.
  • the concealing clip 58 is generally L-shaped in cross-section, extruded or otherwise formed of uPVC, aluminium or any other suitable material, and comprises longer and shorter legs 60, 62, with the legs 60, 62 being angularly spaced by slightly more than 90 degrees.
  • a bead 64 is formed at the distal end of the shorter leg 62.
  • the bead 64 is brought into engagement with an interior part 66 of the lip 54, at a free end of the lip 54, with the lip 54 being in an abutting relationship with the first inner surface 67 of the sub-frame member 42, 48.
  • the clip 58 is then rotated about the bead 64 such that the free end of the longer leg 60 comes into engagement with an inner face 70 of the ventilating part 44, with the ventilating part 44 being in an abutting relationship with a second inner surface of the sub-frame members 42, 48.
  • the clip 58 may be installed before or after the sealing parts 52 of the sub- frame members 42, 48.
  • the purpose of the concealing clips 58 is partly aesthetic, in that they cover the heads of the threaded fasteners 45 referred to above, but also functional, in that they make unauthorised removal of the ventilating part 44 more difficult by concealing the location of the fasteners.
  • the clip 58 may alternatively or additionally be retained in position by way of an adhesive, silicone sealant or the like.
  • Inwardly projecting formations 72 such as spurs or barbs are provided on the inner sealing parts 52 of the sub-frame members 42, 48, and project into the gap 56, to impede removal or disengagement of the clip 58.
  • the inwardly projecting formations 72 may be resilient, so as to allow the clip 58 to pass over them during its installation.
  • the ventilating part 44 is not easily removable, as it is attached internally of the sub-frame members 42, 48, by means of the sealing parts 52 and the threaded fasteners 45 referred to above.
  • the security window arrangement 30 described above provides improved safety and security, whilst also allowing light and air into a room.
  • the arrangement has been described as a security window arrangement, it is clear that it is equally suitable for use in other openings, such as doorways.
  • the arrangement has been described in relation to a generally horizontally opening window, it will be appreciated that it is equally applicable to generally vertically sliding windows, such as sash windows or the like.
  • a remote control mechanism is provided for opening/closing of the internal sliding pane 34.
  • the remote control mechanism is provided internally of the sliding pane 34 where required.
  • the mechanism can be provided externally of the sliding pane 34 where a greater degree of security over the opening/closing of the sliding pane 34 is necessary. In this latter case, the sliding pane 34 would not be manually slidable.
  • the control can be provided on an outer side of the security pane 40 to be inaccessible from the inside, or on an inner side of the security and sliding internal pane 34 to be accessible from the inside, which can depend upon the intended use of the window assembly.
  • the remote control mechanism comprises a motor.
  • a pulley system or any other suitable system can be employed, which can be operated mechanically or electrically.

Abstract

A window assembly (30) comprising a frame (36) in which are received sliding and security members. The security member has ventilating and non- ventilating parts (40, 32), with the sliding member (34) being slidably moveable over the security member between a first position in which air may pass through the ventilating part (40) so as to ventilate the room in which the window assembly (30) is located, and a second position in which no such ventilation can occur. The ventilating part 40 may comprise a grille, perforated sheet, lattice arrangement or the like.

Description

A WINDOW ASSEMBLY
Description of Invention
The present invention relates to a window assembly.
Background to the Invention and Overview of the Prior Art
Many windows for residential and commercial buildings include opening sections to allow air from an exterior of the building to enter the building, for ventilation purposes, for example. The opening sections often comprise a window pane which slides, in generally horizontal or vertical directions, in relation to a fixed pane. The panes are typically mounted in a window frame with the sliding pane being spaced from, but generally parallel to, the fixed pane, such that when the sliding pane has been moved to its open position, it is located behind the fixed pane, i.e. towards the interior of the building. Whilst windows of this nature allow a large amount of external air to enter a building, they also give rise to a number of disadvantages, principally relating to safety and security. It will be appreciated that, with the sliding pane in its fully open position, a large opening is presented, through which a person might be able to pass. This has clear security implications, in that an intruder could gain access to a building through the open window, especially where the window is at a relatively low, accessible level. Of equal importance, particularly where the windows are installed in a residential building, is the risk that a person or animal could fall or climb out of the open window, possibly leading to injury or even death.
Of course, these considerations apply not only to sliding windows, but also to doors which use the same principles of operation, such as sliding patio doors. It will be understood, in that light, that the term 'window assembly' as used herein is also intended to refer to, and thus encompass, patio door assemblies and the like.
Efforts have been made to address some of these drawbacks, but have hitherto proved unsatisfactory, with many employing guards of wire mesh or similar material which are simply positioned over a window opening.
For example, UK patent application no. 2378475 discloses a removable window guard comprising a frame which supports wire mesh and which can be clipped into place on an interior side of the window by means of clips which are attached to the frame. Similarly, European patent application no. 0422934 discloses a window guard comprising a sheet of perforated metal attached to a frame which is receivable on an external side of a window frame and which can be fixed into position using brackets.
Summary of the Invention
According to a first aspect of the invention, there is provided a window assembly comprising a frame in which are received sliding and security members, the security member having ventilating and non-ventilating parts, with the sliding member being slidably moveable over the security member between a first position in which air may pass through the ventilating part so as to ventilate the room in which the window assembly is located, and a second position in which no such ventilation can occur. The ventilating part of the security member may comprise a perforated or apertured sheet, panel, board or the like. Preferably, the ventilating part comprises a sheet, panel or layer of mesh, grille, lattice or the like.
The ventilating part may be any thickness dependent upon the proposed usage. Most preferably, the ventilating part is at least 1.5 mm thick. Most preferably, the ventilating part comprises a sheet of metal mesh. The non-ventilating part of the security member may comprise a fixed pane.
The security member may have sealing parts to assist in holding the ventilating part in place. The ventilating part may be received within a sub- frame of the security member, with the fixed pane being received within an adjacent sub-frame.
The sealing parts may be provided within the sub-frame of the ventilating part, and may define a gap in said sub-frame within which the ventilating part is received. The ventilating part may comprise a sheet, having a lip which is received in the gap in the sub-frame.
The ventilating part may be held in place by a fastening element which passes through it and into the sub-frame. The fastening element may comprise a threaded fastener, and may conveniently comprise an anti-tamper screw.
There may be provided a plurality of said fastening elements.
The window assembly may comprise a concealing clip which, in use, at least partially conceals at least some of the fastening elements.
The concealing clip may be generally L-shaped in cross-section, and may have longer and shorter legs. The legs may be angularly spaced by more than 90 degrees.
The concealing clip may have a bead at the distal end of the shorter leg. The bead, in use, may engage an inner surface of the lip.
The concealing clip, in use, may cover some or all of the heads of the fastening elements.
There may be provided a formation on the sealing parts of the sub- frame which impedes removal or disengagement of the concealing clip. The formation may project inwardly, and may be resilient, to allow the clip to pass over it during its installation in the sub-frame. Several such formations may be provided.
A remote control mechanism may be provided to operate the opening/closing of the ventilating part by contolling the movement of the sliding member over ventilating and non-ventilating parts of the security member. The remote control mechanism may be provided at an inner or an outer location of the assembly for internal/ external opening/closing control respectively. The remote control mechanism may be mechanical or electrical. The remote control mechanism may be provided internally or externally of the sliding member.According to a second aspect of the invention, there is provided a concealing clip for use when holding a panel in place within a window or door frame, the concealing clip being generally L-shaped and having longer and shorter legs, the legs being angularly spaced by more than 90 degrees, such that the clip, in use, may be positioned over a fastening element which holds the panel to the frame.
The concealing clip may comprise a bead at the distal end of the shorter leg. The bead, in use, may engage an interior part of a lip of the panel.
Specific Description of the Invention
Specific and non-limiting embodiments of the invention will now be described, strictly by way of example only, with reference to the accompanying drawings, of which: FIGURE 1 is a vertical cross-sectional view of a conventional uPVC style double-glazed fixed window pane assembly;
FIGURE 2 is a schematic illustration of a security window assembly;
FIGURE 3 is a horizontal cross-sectional view of the security window assembly of Figure 2; and FIGURE 4 is an enlarged cross-sectional view of the part of the assembly shown in dotted outline in Figure 2, with some parts shown spaced from their in-use positions, for clarity. Referring first to Figure 1, a conventional uPVC (unplasticised polyvinyl chloride) style double-glazed fixed window pane assembly is shown generally at 10, comprising sub-frame members 12 having internal reinforcing members 14 of aluminium, steel or any other suitable material. The sub-frame members 12 have sealing parts 16 which engage with outer and inner glass panes 18, 20, with the panes 18, 20 being separated by spacers 22 of rubber or similar material, so as to maintain an air gap between them to provide thermal and sonic insulation. Thus, the sub-frame members 12, the outer and inner panes 18, 20 and the spacers 22 form a single sealed unit 24. The sub-frame members 12 engage with a frame surround 26, which in turn engages with a wall engaging member 28 which is installed in an exterior wall of a building, to fix the sealed unit 24 into the wall. The frame surround 26 may also engage with the surround of another similar assembly 10 (not shown), or with that of a different type of assembly, such as a sliding pane assembly. Figure 2 is a schematic view of a security window assembly 30 in a closed condition. The security window assembly 30 comprises an outer fixed pane 32 and an inner sliding pane 34, each of generally similar construction to the sealed unit 24 referred to above. The outer fixed pane 32 and the inner sliding pane 34 are mounted within a common frame 36, with the inner sliding pane 34 being mounted for sliding movement in the direction of arrow 38, for example on rails or runners (not shown), inwardly of the fixed pane.
The frame 36 may be a plastics (e.g. uPVC), timber or metallic (e.g. aluminium) construction. The arrangement is such that the when the assembly 30 is installed, the inner sliding plane 34 lies in a generally vertical plane on an interior side of the assembly 30, with the outer fixed plane 32 lying in a generally parallel plane on an exterior side of the assembly 30. The outer fixed pane 32 and the inner sliding pane 34 can be in reverse order where opening is intended to be operated from a location external to a room in which the assembly 30 is installed.
The inner sliding pane 34 is moveable between an open position, in which it is positioned behind the outer fixed pane 32, and the closed position shown in the Figure. The rails or runners on which the sliding pane 34 is mounted, provide an inertia bearing or other suitable feature, that prevents the sliding pane 34 from being slidably moved at speed. Therefore, where the sliding pane 34 is slidably moved across said runners above a certain speed, the bearings respond by locking the position of the sliding pane 34, the aim being to prevent the sliding pane 34 from being used to self-harm or create a disturbance.
The frame 36 may be of a generally welded or mechanically jointed construction, as may be the sub-frame members 42 and 48, referred to below. An outer security pane 40 is mounted adjacent the outer fixed pane 32, with the security pane 40 and the fixed pane 32 thus forming a single security member on the exterior side of the assembly 30. The outer security pane 40 comprises sub-frame members 42, within which a ventilating part 44, comprising a panel of wire mesh, perforated metal, lattice, grille or the like, is housed, to allow the passage of light and air but to present a physical barrier to prevent people or objects from passing through (or from being passed through, in the case of weapons or drugs, for example) the opening created when the inner sliding pane 34 is in its open condition.
The outer security pane 40 comprises approximately between 35% and 55% open area for ventilation.
In one embodiment, the outer security pane 40 comprises 2 mm perforations or apertures in a 3 mm matrix arrangement (in every 3mm area, a 2mm hole is provided), giving a 40% open area for visibility therethrough. This arrangement prevents the passage of very small articles and behaves as an efficient insect screen, whilst providing adequate visibility and a high degree of strength.
Where a greater degree of visibility is required, the outer security pane
40 comprises approximately 51% open area for ventilation, which is achieved by 3 mm perforations or apertures in a 4 mm matrix arrangement for optimum visibility and optimum strength. However, any suitable matrix arrangement can be provided to achieve the required degree of strength and visibility.
The outer security pane 40 is approximately 1.5 mm in most cases, although thicker and thinner panes 40 can be provided where strength is a greater issue/ lesser issue respectively. The construction of the outer security pane 40 is shown in more detail in Figure 3, a horizontal cross-sectional view of the assembly 30 of Figure 2. The outer security pane 40 has, at one side, a sub-frame member 42 with a reinforcing member 46, whilst at an opposite side the outer security pane 40 shares a sub-frame member 48 and reinforcing member 50 with the outer fixed pane 32. The sub-frame members 42, 48 have sealing parts 52, which assist in holding the ventilating part 44 of mesh or the like in place.
The ventilating part 44 comprises a generally flat sheet whose edges are folded to create a lip 54 of substantially the same depth as a gap 56 between opposed sealing parts 52 of the frame member 42. The ventilating part 44 slots into the sub-frame member 42, with the lip 54 being received in the gap 56, such that the ventilating part 44 abuts the outer sealing parts 52 of the sub-frame members 42, 48. In a preferred embodiment, the ventilating part 44 is held in place by fastening elements which pass through it, to and into the sub-frame members 42 and 48. Thus the ventilating part 44 may be held in place using threaded fasteners 45 which pass through pre-drilled holes in the lip 54 into the inner surface 67 of the sub-frames. These pre-drilled holes can be provided at regular intervals of approximately 100 mm. The threaded fasteners 45, in a preferred embodiment, may be "anti-tamper" screws, which resist unauthorised removal by virtue of a specially-configured head, for example. Where a lower degree of security is acceptable, the ventilating part 44 may simply be held in place by way of a conventional glazing bead applied to the outwardly-facing part of the assembly. The ventilating part 44 may also be provided with a concealing clip, shown generally at 58 in Figures 3 and 4. One or more individual clips 58 may be provided, with the clips 58 being spaced at intervals along the length of the lip 54, over the threaded fasteners 45 which hold the ventilating part 44 in place. In a preferred embodiment, however, a single elongate clip 58 is used, extending along substantially the entire length of the lip 54, so as to ensure a close fit between the ventilating part 44 and the sub-frame members 42, 48.
The concealing clip 58 is generally L-shaped in cross-section, extruded or otherwise formed of uPVC, aluminium or any other suitable material, and comprises longer and shorter legs 60, 62, with the legs 60, 62 being angularly spaced by slightly more than 90 degrees. A bead 64 is formed at the distal end of the shorter leg 62.
To install the clip 58, the bead 64 is brought into engagement with an interior part 66 of the lip 54, at a free end of the lip 54, with the lip 54 being in an abutting relationship with the first inner surface 67 of the sub-frame member 42, 48. The clip 58 is then rotated about the bead 64 such that the free end of the longer leg 60 comes into engagement with an inner face 70 of the ventilating part 44, with the ventilating part 44 being in an abutting relationship with a second inner surface of the sub-frame members 42, 48. The clip 58 may be installed before or after the sealing parts 52 of the sub- frame members 42, 48.
The purpose of the concealing clips 58 is partly aesthetic, in that they cover the heads of the threaded fasteners 45 referred to above, but also functional, in that they make unauthorised removal of the ventilating part 44 more difficult by concealing the location of the fasteners. To maximise the security benefits, it will be understood that the use of a single elongate clip 58, extending substantially along the entire length of the lip 54, will be preferable. The clip 58 may alternatively or additionally be retained in position by way of an adhesive, silicone sealant or the like.
Inwardly projecting formations 72 such as spurs or barbs are provided on the inner sealing parts 52 of the sub-frame members 42, 48, and project into the gap 56, to impede removal or disengagement of the clip 58. The inwardly projecting formations 72 may be resilient, so as to allow the clip 58 to pass over them during its installation.
It will be appreciated that the ventilating part 44 is not easily removable, as it is attached internally of the sub-frame members 42, 48, by means of the sealing parts 52 and the threaded fasteners 45 referred to above. Thus, the security window arrangement 30 described above provides improved safety and security, whilst also allowing light and air into a room. Although the arrangement has been described as a security window arrangement, it is clear that it is equally suitable for use in other openings, such as doorways. Equally, although the arrangement has been described in relation to a generally horizontally opening window, it will be appreciated that it is equally applicable to generally vertically sliding windows, such as sash windows or the like.
It should also be noted, of course, that the externally-beaded arrangement shown in Figure 3 is only exemplary, and that an internally- applied glazing bead could equally well be used. In one embodiment of the invention, a remote control mechanism is provided for opening/closing of the internal sliding pane 34. The remote control mechanism is provided internally of the sliding pane 34 where required. However, the mechanism can be provided externally of the sliding pane 34 where a greater degree of security over the opening/closing of the sliding pane 34 is necessary. In this latter case, the sliding pane 34 would not be manually slidable. For example, the control can be provided on an outer side of the security pane 40 to be inaccessible from the inside, or on an inner side of the security and sliding internal pane 34 to be accessible from the inside, which can depend upon the intended use of the window assembly.
In a preferred embodiment, the remote control mechanism comprises a motor. Alternatively, a pulley system or any other suitable system can be employed, which can be operated mechanically or electrically.When used in this specification and claims, the terms "comprises" and "comprising" and variations thereof mean that the specified features, steps or integers are included. The terms are not to be interpreted to exclude the presence of other features, steps or components.
The features disclosed in the foregoing description, or the following claims, or the accompanying drawings, expressed in their specific forms or in terms of a means for performing the disclosed function, or a method or process for attaining the disclosed result, as appropriate, may, separately, or in any combination of such features, be utilised for realising the invention in diverse forms thereof. It is of course to be understood that the invention is not intended to be restricted to the details of the above embodiments, which are described by way of example only. Thus, it is to be understood that the window assembly could be used as a patio door type arrangement. In addition, where greater/ lesser degrees of security are required, alternative percentage open areas can be applied to the ventilating part 44.

Claims

Claims
1. A window assembly comprising a frame in which are received sliding and security members, the security member having ventilating and non- ventilating parts, with the sliding member being slidably moveable over the security member between a first position in which air may pass through the ventilating part, so as to ventilate the room in which the window assembly is located, and a second position in which no such ventilation can occur.
2. A window assembly according to Claim 1 wherein the ventilating part of the security member comprises a perforated or apertured sheet, panel, board or the like.
3. A window assembly according to Claim 1 or Claim 2 wherein the ventilating part comprises a sheet, panel or layer of mesh, grille, lattice or the like.
4. A window assembly according to any of Claims 1 to 3 wherein the ventilating part comprises a sheet of metal mesh.
5. A window assembly according to any of the preceding Claims wherein the non-ventilating part of the security member comprises a fixed pane.
6. A window assembly according to any of the preceding Claims wherein the security member comprises sealing parts to assist in holding the ventilating part in place.
7. A window assembly according to any of the preceding Claims wherein the ventilating part is received within a sub-frame of the security member, with the fixed pane being received within an adjacent sub-frame.
8. A window assembly according to Claim 6 wherein the sealing parts are provided within the sub-frame of the ventilating part, and define a gap in said sub-frame within which the ventilating part is received.
9. A window assembly according to Claim 8 wherein the ventilating part comprises a sheet, having a lip which is received in the gap in the sub-frame.
10. A window assembly according to any of the preceding Claims wherein the ventilating part is held in place by a fastening element which passes through it into the sub-frame.
11. A window assembly according to Claim 10 wherein the fastening element comprises a threaded fastener.
12. A window assembly according to Claim 10 or Claim 11 wherein the fastening element comprises an anti-tamper screw.
13. A window assembly according to Claim 10, Claim 11 or Claim 12 having a plurality of said fastening elements.
14. A window assembly according to any one of Claims 10 to 13 further comprising a concealing clip which, in use, at least partially conceals at least some of the fastening elements.
15. A window assembly according to Claim 14 wherein the concealing clip is generally L-shaped in cross-section, and has longer and shorter legs.
16. A window assembly according to Claim 14 or Claim 15 wherein the concealing clip has a bead at the distal end of the shorter leg.
17. A window assembly according to Claim 16 wherein the bead, in use, engages an inner surface of the lip of the sheet of the ventilating part.
18. A window assembly according to any one of Claims 14 to 17 where dependant upon Claim 10, Claim 11 or Claim 12 wherein the concealing clip, in use, covers some or all of the heads of the fastening elements.
19. A window assembly according to any of Claims 14 to 18 wherein a formation is provided on the sealing parts of the sub-frame which impedes removal or disengagement of the concealing clip.
20. A window assembly according to Claim 19 wherein the formation projects inwardly.
21. A window assembly according to Claim 19 or Claim 20 wherein the formation is resilient.
22. A window assembly according to any one of Claims 1 to 21 , wherein the assembly comprises a remote control opening/ closing mechanism.
23. A window assembly according to Claim 22, wherein the remote control opening/ closing mechanism is in the form of a rocker switch.
24. A window assembly according to any one of Claims 22 or 23, wherein the opening/ closing mechanism is located externally of the assembly.
25. A window assembly comprising a plurality of formations according to any of Claims 19 to 24.
26. A window assembly substantially as hereinbefore described and/or as shown in the accompanying drawings.
27. A concealing clip for use when holding a panel in place within a window or door frame, the concealing clip being generally L-shaped and having longer and shorter legs, the legs being angularly spaced by more than 90 degrees, such that the clip, in use, may be positioned over a fastening element which holds the panel to the frame.
28. A concealing clip substantially as hereinbefore described and/or as shown in the accompanying drawings.
29. Any novel feature or novel combination of features described herein and/or in the accompanying drawings.
EP07732184A 2006-03-28 2007-03-28 A window assembly Active EP2013435B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0606152A GB2436583A (en) 2006-03-28 2006-03-28 Window assembly comprising sliding and security members
PCT/GB2007/001127 WO2007110641A2 (en) 2006-03-28 2007-03-28 A window assembly with a sliding member

Publications (2)

Publication Number Publication Date
EP2013435A2 true EP2013435A2 (en) 2009-01-14
EP2013435B1 EP2013435B1 (en) 2012-07-04

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ID=36424689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07732184A Active EP2013435B1 (en) 2006-03-28 2007-03-28 A window assembly

Country Status (8)

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US (1) US8661734B2 (en)
EP (1) EP2013435B1 (en)
AU (1) AU2007231138B2 (en)
CA (1) CA2647446C (en)
DK (1) DK2013435T3 (en)
ES (1) ES2393643T3 (en)
GB (2) GB2436583A (en)
WO (1) WO2007110641A2 (en)

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Also Published As

Publication number Publication date
CA2647446C (en) 2013-07-02
AU2007231138A1 (en) 2007-10-04
GB2446730A (en) 2008-08-20
ES2393643T3 (en) 2012-12-26
GB2436583A (en) 2007-10-03
CA2647446A1 (en) 2007-10-04
US20100180504A1 (en) 2010-07-22
GB2446730B (en) 2009-05-06
GB0606152D0 (en) 2006-05-10
GB0805549D0 (en) 2008-04-30
DK2013435T3 (en) 2012-10-15
AU2007231138B2 (en) 2013-06-27
EP2013435B1 (en) 2012-07-04
WO2007110641A3 (en) 2007-11-29
WO2007110641A2 (en) 2007-10-04
US8661734B2 (en) 2014-03-04

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